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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
736 | if ( is_null( $parent ) ) { |
737 | break; |
738 | } |
739 |
|
740 | $this->current_level++; |
741 | $find_main_page = (int) $parent->post_parent; |
742 |
|
743 | if ( ! isset( $parent_name ) ) { |
744 | /** This filter is documented in wp-includes/post-template.php */ |
745 | $parent_name = apply_filters( 'the_title', $parent->post_title, $parent->ID ); |
746 | } |
747 | } |
748 | } |
749 | } |
750 |
|
751 | $pad = str_repeat( '— ', $this->current_level ); |
752 | echo "<strong>"; |
753 |
|
754 | $format = get_post_format( $post->ID ); |